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Go Back > Models > Jeep Cherokee & Comanche Forums > MJ Comanche Technical Forum > coil and ignition

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Unread 04-16-2008, 08:28 AM   #1
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1989 MJ Comanche 
Join Date: Apr 2008
Location: Hammond, LA
Posts: 7
coil and ignition

I have a 89 MJ with a 4.0L and I have been having some problems keeping it running at low rpms. I have started replacing the vacuum lines just because of their age and condition. My air filter was saturated with oil and I cleaned the housing and replaced the air filter.

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